Impact of internal migration on the economic well-being of local workers and school dropouts among children in Vietnam

This study examines the impact of migration on local workers and high school dropouts of local students. A conventional approach without addressing the endogeneity issue may lead to biased results. Our endogeneity-corrected estimates show a positive impact of migration on the monthly wages of local workers. A higher share of migrants increases the probability of local workers with employment contracts, social insurance, and holiday pay. Heterogeneity analysis shows that local workers, no matter their educational level, work experience, or occupation sectors, benefit from the inflow of migrants. Finally, migration inflow lowers the probability of high school dropouts among local students. Our findings resulting from rigorous statistical approaches suggest that internal migration produces positive impacts on the economic well-being of local residents, refuting the argument about the adverse effects associated with internal migration.     

Maximizing k-submodular functions under budget constraint: applications and streaming algorithms

Journal of Combinatorial Optimization - Motivated by the practical applications in solving plenty of important combinatorial optimization problems, this paper investigates the Budgeted k-Submodular...     

The role of visa class in the location choices of immigrants in Australia at the regional and neighbourhood scales

Australia’s pro-immigration policies have played a vital role in national population growth, serving to address what would otherwise be chronic labour shortages and population ageing. While migrants to Australian have shown a clear preference for cities and tend to locate with co-ethnics, variations by visa class—employment, family reunification, and asylum—have yet to be fully explored. This paper aims to identify variations in settlement patterns of immigrants in Australia by visa types and the factors underpinning these choices, paying particular attention to ethnic networks and employment opportunities. We apply a series of negative binomial regressions to aggregate census data linked to visa status. At the suburb level, our results show the importance of the presence of compatriots in shaping the location choices of family migrants, with the exception of skilled and humanitarian immigrants from China, Malaysia and Thailand. At the regional level, skilled migrants, including skilled regional migrants, respond to employment opportunities to a greater extent than family and humanitarian migrants.

     

Interpersonal synchrony is associated with infants’ reactions to subtle changes in caregiver-infant interactions

The present study examined the role of interpersonal synchrony between mothers and their 4-month-old infants (N = 40) in infant responses to a modified interaction where mothers continually looked and verbalised towards but did not engage with their children. During a natural interaction we observed behavioural synchrony and for a subsample of infants (n = 20) measured change in their salivary oxytocin from before to after the natural interaction. During the modified interaction we observed infant gaze, positive, and negative affect. We found that higher interpersonal synchrony was related to longer infants’ social gaze and shorter displays of negative affect during the modified interaction. Increase in infant oxytocin was also associated with longer gaze, but also longer negative and shorter positive affect during the modified interaction. Our results show that interpersonal synchrony allows infants to notice changes in interactions with others, but also helps them to regulate their emotions during such modified exchanges. These findings thus indicate the importance of synchrony experiences with caregivers for the development of early regulatory capacities.     

Factor structure of the Mini-Maternal Behavior Q-Sort and associations with infant attachment: Informing precision in research and intervention

We examined the factor structure of parental sensitivity to infants as assessed by the Mini-Maternal Behavior Q-Sort (Mini-MBQS), a 25-item short-form of the original 90-item MBQS. We aimed to: (1) identify latent factors of the Mini-MBQS; and (2) validate each factor by testing associations with infant attachment classifications. Data on parent-infant dyads (n = 313; 222 mothers with 281 children, 29 fathers with 32 children) were drawn from a three-generation Australian cohort study. Exploratory Factor Analysis and Exploratory Structural Equation Modelling examined the structure of the Mini-MBQS. Two latent Mini-MBQS factors were identified, requiring 8 of 25 original items: (1) Attention and Responsiveness and (2) Contingency in Interactions. Infants with insecure attachment classifications had parents with lower sensitivity across both factors relative to infants classified secure. In particular, infants with resistant attachment classifications had parents with notably low Contingency in Interactions scores. Infants with disorganised attachment classifications had parents with the lowest relative sensitivity across both factors, and in these dyads Attention and Responsiveness scores were especially low. Results provide an empirically derived factor structure for the Mini-MBQS. Two subscales, each with significant infant attachment associations, may improve precision in clinical intervention and research translation.